Both the Crestliner C 1870 VCC 2008 and the Crestliner CXJ Series 2070 SC 2009 are modified-V designs, both built in aluminium, so the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
On paper these two are close siblings in the size department - Crestliner C 1870 VCC 2008 at 18,0 ft versus Crestliner CXJ Series 2070 SC 2009 at 20,0 ft. Weight tells a clearer story for trailering families: the Crestliner CXJ Series 2070 SC 2009 tips the scales at 1 390 lbs - 240 lbs less than the Crestliner C 1870 VCC 2008 at 1 150 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
The power gap is worth calling out. Rated to 115 hp, the Crestliner CXJ Series 2070 SC 2009 has a 40-hp advantage over the Crestliner C 1870 VCC 2008's 75-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Crestliner CXJ Series 2070 SC 2009 is rated for 7 passengers, while the Crestliner C 1870 VCC 2008 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner CXJ Series 2070 SC 2009 could be the deciding factor.
Bottom line: Choose the Crestliner CXJ Series 2070 SC 2009 if your priority is putting more people on the water - it handles 7 passengers and at 20,0 ft it has the deck room to back that rating up comfortably. The Crestliner C 1870 VCC 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.